Does one cheat meal ruin a diet?

No. One high-calorie day barely moves your weekly average. In this example a 3,200 kcal Saturday still leaves a weekly average of 2,093 kcal, below a 2,400 maintenance. What ruins progress is quitting for the rest of the weekend.

How many calories are in alcohol?

Roughly 150 kcal in a glass of wine and 300 kcal or more in two beers. Alcohol is not forbidden — log it like any other food and keep your earlier meals lean so it fits your total for the day.

How do I eat out on a diet?

Eat a protein snack before you go, drink plenty of zero-calorie fluids, avoid fried food and heavy sauces when possible, and use a meal scanner to estimate and log the meal.

Eating Out & Alcohol on a Diet: How to Stay on Track

Eating Out, Alcohol and Bad Days — How to Stay on TrackOne bad day doesn't make you fat. How to eat out, drink and get back on plan after a weekend without losing progress, with the weekly calorie math.